The Twitter account, under the name “Jones smith,” has no followers, no profile picture and has been virtually dormant for long periods since its creation in 2014. But @forargument has roared to life in the past few months, rising up to vigorously defend Mr. Goodell against perceived attacks on his handling of issues such as the national anthem protests by players.

The most frequent sparring partner for @forargument is the nation’s sports media. On Sept. 26, @ProFootballTalk, the Twitter account for the popular NBC Sports blog, tweeted that it was “on the commissioner” to solve the anthem issues.

In response, @forargument tweeted: “Please do better reporting. He is already doing this. You are behind.”

Who is this valiant defender of a man who has so few defenders?

It is Roger Goodell’s wife, Jane Skinner Goodell, The Wall Street Journal confirmed after an examination of the account.......Amid this firestorm, Mrs. Goodell has covertly worked to change the narrative. All of the 14 tweets from Mrs. Goodell since August are defenses of Mr. Goodell in reply to various publications, including the Journal and prominent sports commentators.......“The premise of your article is silly,” @forargument tweeted on Oct. 3 at the Journal after an article about disagreement among league owners over handling of the anthem protests. “What board of directors in this country would all agree on this issue?”